Thruster Like Froning, And A Few Tips To Do Them More Efficiently.If there’s one exercise that’s synonymous with CrossFit, it’s probably the thruster. Heck, the term thruster was first coined by CrossFit. Ask Games champ Rich Froning what he thinks the best exercise is and he’ll say it’s the thruster...Click here to read more: WHAT’S IN A THRUSTER? "Box Life Magazine"